F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 17/12 (2006.01) F01D 9/02 (2006.01) F01D 17/18 (2006.01) F01D 19/00 (2006.01)
Patent
CA 2058815
56,267 ABSTRACT OF THE DISCLOSURE A method and apparatus for minimizing heat rate impairment from excess flow margin in a nuclear powered utility steam turbine generating system incorporates a plurality of selectively positionable plug members for blocking steam flow passages through a first stage nozzle ring of the steam turbine. Monitoring apparatus determines when the steam flow through a control valve feeding steam into the steam turbine exceeds a desired flow rate value for the power system and thereafter selectively inserts plug members into position in front of flow passages between adjacent nozzle blades in the first stage nozzle ring. The plug members effectively reduce this flow rate through the nozzle ring without requiring throttling of steam by the control valve. Utilizing the plug members to block steam flow through selected passages in the first stage nozzle ring allows control of the volume of steam flow through the ring without the inefficiencies attained when throttling the control valve is used to control steam flow.
Davids Joseph
Silvestri George Joseph Jr.
Bereskin & Parr
Westinghouse Electric Corporation
LandOfFree
Method of improving the rated load heat rate of steam turbines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of improving the rated load heat rate of steam turbines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of improving the rated load heat rate of steam turbines will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1405742